baber/WOPTO huggingface dataset:
Patent GB-2166496-A (GB)
Title: Fluid-operated actuator
Inventor: STOLL KURT
IPC: F15B15/10
Filed: 1985-10-31
Abstract: An actuator has one or more bellows composed of annular elements (2) which are brazed, soldered, welded or bonded together at alternately large and small diameter zones. An output member (5) of the actuator is movable by pressurizing or evacuating the bellows. The output member (5) runs along a straight or curved guide rod (3) inside the bellows. A preferred method of producing the bellows consists of interposing spelter rings (11 and 12) between the annular elements and positioning the assembly on a ceramic rod. The ring stack is tightened in the axial direction and the spelter rings are fused in a furnace. The bellows so produced is deformed by the application of a maximum internal pressure. <IMAGE>
Patent GB-2171986-A (GB)
Title: Aqueous rooting gel
Inventor: STOW MICHAEL WILLIAM
IPC: A01G31/00
Filed: 1986-02-25
Abstract: There is described an aqueous rooting gel which comprises a thixotropic gel of hectorite in water containing at least 60 ppm, and preferably not more than 200 ppm calcium ions. There is also provided a transparent container including such a rooting gel. The gels are useful for rooting a wide variety of soft wood cuttings, eg fuchsia and geranium.
Patent GB-2171893-A (GB)
Title: Padding for protective clothing
Inventor: WOODS RODERICK IAN
IPC: A41D13/015
Filed: 1986-03-05
Abstract: A padding material for protective clothing has a backing sheet of cotton for example. A number of foam plastics plates (15), preferably each having a thickness of 3 mm, are stitched (16) or stapled to the backing sheet along common edges to provide freely movable opposite edges. The plates overlap each other by at least a quarter of the width of the individual plates in a direction transverse to the rows of stitching. <IMAGE>
Patent GB-2190966-A (GB)
Title: Wind energy convertor
Inventor: MEWBURN-CROOK ANTHONY JAMES SE
IPC: F03D3/04
Filed: 1986-05-22
Abstract: A wind energy convertor comprises an upstanding support which may comprise a plurality of columns uniformly spaced around a central vertical axis; a circular turbine which may be connected to a fan situated above the turbine and which is supported to be freely rotatable about the vertical axis and which comprises a plurality of circumferentially spaced blades extending lengthwise with respect to the support; and a closed annular body of reinforced concrete or other fluid-impermeable material carried by the support and coaxial with and positioned adjacent to the upper end of the turbine. The closed annular body has inlet and outlet ports for water or other fluid. At least one pump is provided. The closed annular body is so shaped as to create a reduction in air pressure in the circular space bounded there by so that wind is drawn upwardly and out of the circular space to drive the turbine. A second annular body, also suitable for fluid storage may be provided below the first body, there being a plurality of blades extending between the two bodies and defining venturi passages for directing wind onto the turbine. The bodies and turbine may be vertically adjustable relative to the support columns. The fan & turbine may run on an annular track by means of wheels or magnetic levitation. <IMAGE>
Patent GB-2177344-A (GB)
Title: Saws
Inventor: YANG TAI-HER
IPC: B23D61/12
Filed: 1986-07-01
Abstract: A saw 20 comprising an elongate toothed blade 22 has teeth 23 extending from one end 22a and facing the other end, and a set of teeth 24 extending from the other end and facing the end 22a. An untoothed edge or neutral tooth 25 may be located between the sets of teeth 23 and 24. The teeth may be of gradually varying pitch or may comprise groups of teeth, the teeth of each group having a constant pitch. <IMAGE>
Patent GB-2180358-A (GB)
Title: Photosensitive microcapsules and their use on imaging sheets
Inventor: DAVIS PAUL D
IPC: G03F7/004
Filed: 1986-07-10
Abstract: A photosensitive microcapsule comprises as its internal phase, a photosensitive composition including a free radical addition polymerizable material, and a photoinitiator system. The photoinitiator system includes an absorber, a coinitiator and an autoxidizer which are all different. The coinitiator is a compound which is more efficient in yielding free radicals by interacting with the absorber than the autoxidizer. The autoxidizer is more efficient in yielding free radicals by interacting with oxygen or oxygen radicals than the coinitiator.
Patent GB-2202007-A (GB)
Title: I.C. engine carburettor
Inventor: LI GEORGE YI-HSIN
IPC: F02M9/133
Filed: 1987-03-06
Abstract: A body A is coaxially supported in the venturi 20 and is actuated by the accelerator. A secondary air passage B provides air flow to the fuel feeding tube 170 and a valve (C, Fig.2) reduces the flow cross-section of the passage (B) when the vacuum downstream of the body A falls. <IMAGE>
Patent GB-2188189-A (GB)
Title: Lamps for testing microwave ovens
Inventor: STANLEY PETER WILLIAM
IPC: H05B6/64
Filed: 1987-03-11
Abstract: The radiation distribution in a microwave oven is tested by placing therein a sealed cavity containing a microwave radiation ionizable gas, eg Ne, which emits or causes to be emitted visible light in the presence of an R-/+ microwave field. The testing lamp comprises a small neon indicator bulb encapsulated in a block of transparent or semi-transparent plastics, which may be of any desired shape. The plastics may be foamed, and is preferably of methyl methacrylate. Alternatively polyester resin, PVC or polyurethane plastic, may be used. In use, the block is placed on the turntable or floor of a microwave oven which is then turned on. The microwave radiation makes the neon indicator bulb glow and indicates visually whether the oven is operating correctly and for demonstration purposes shows where the radiation is strongest.
Patent GB-2204081-A (GB)
Title: Door
Inventor: GODFREY ROGER DONKIN
IPC: E05D15/48
Filed: 1987-04-25
Abstract: A door wing is pivotable relative to its frame by a pivot pin (30) set at an angle less than 90 DEG  to the horizontal, so as to raise the bottom free carrier clear of the threshold to counteract any dropping. As described in a door assembly the wing (10) is mounted for remote controlled sliding movement relative to the frame (11) by means of a cross member (24) mounted via slides (22) to slide on a rail 21, the wing (10) also being mounted relative to the cross member (24) for pivoting movement about a pivot pin (30) extending at an angle of less than 90 DEG  relative to the top edge surface (18) of the wing (10) so that upon at least initial pivoting opening, a bottom edge carrier a second side edge (15) is caused to rise. The door is manually held closed on to member 24 by a spring ball catch 23 that can be overriden in an emergency by pushing. <IMAGE>
Patent GB-2191179-A (GB)
Title: Cap for a container
Inventor: WILLIAMS GORDON BROMLEY
IPC: B65D83/14
Filed: 1987-06-01
Abstract: A push-on cap (10) for an aerosol container (16) has a plurality of internal longitudinal ribs (13, 14) inclined at an acute angle to the element of the container surface it contacts when pushed on to the container. The cap conveniently has a cylindrical skirt (12) on which the ribs are formed and when such a cap is used in combination with an aerosol container having a circular rim (15) at one end which surrounds an operating valve, the cap protects the valve with the ribs being deflected towards the skirt by engagement of the ribs with the rim (15). Some of the ribs have shoulders (18) which rest on the rim. <IMAGE>
Patent GB-2224038-A (GB)
Title: Fuel for an internal combustion engine
Inventor: MUNSON THOMAS HENRY
IPC: C10L1/32
Filed: 1988-09-30
Abstract: A fuel for an internal combustion engine comprises an aqueous emulsion comprising an aqueous emulsion of wax and/or gum and a liquid that is miscible with the said emulsion and that yields a combustible vapour.
Patent GB-2226726-A (GB)
Title: Sample and hold circuit
IPC: G11C27/02
Filed: 1988-12-28
Abstract: A sample and hold circuit includes a first low resolution digital sampling circuit 1, 2, 3 for obtaining a first approximation to an input signal. The output from this is subtracted 5 from the original input signal to obtain an error signal Vin - Vn which is itself sampled and held 7 and subsequently added to the digitally sampled signal to produce a true representation of the input signal. Preferably the sample and hold device 7 is analog but it may be digital. Since only a relatively small signal is held, capacitor losses are significantly reduced. <IMAGE>
Patent GB-2240661-A (GB)
Title: Absorbing coatings
Inventor: KUMURDJIAN PIERRE
IPC: C09D5/32
Filed: 1989-01-17
Abstract: A coating for absorbing microwave, visible and 1R radiation comprises a binder 34, Fig. 3, e.g. an oxide, epoxy resin, thermosetting resin, photoresist or adhesive and a load of chips C. The chips act as an interferential and/or loss absorption system and consist of alternating amorphous magnetic layers 14, 18, 22, Fig. 1, and electrically insulating layers 12, 16, 20, 24. The magnetic layers consist of Co Zr, Co-Zr-Nb, Co-Si, Co-B-Si or Fe-B alloys magnetised in the plane of the layers. The electrically insulating material consists of quartz, glass, silicon, alumina, silicon nitride, zinc sulphide or carbin. The coating may be built up from several layers. The chips are made by vacuum deposition of the stack of layers onto a glass or silicon support 10, followed by division of the stack into a multiplicity of chips. <IMAGE>
Patent GB-2229874-A (GB)
Title: Synchronisation in communication systems
Inventor: SAUL PETER HENRY
IPC: H04B7/24
Filed: 1989-02-04
Abstract: A narrow band modulation UHF/Microwave communication system comprises a transmit/receive base station having a plurality of transmitter for transmitting information at respective UHF/Microwave channel frequencies to a plurality of remote transmit/receive stations, in which the transmitters at the base station are served in common by a single master oscillator and in which a single reference frequency signal is derived from the master oscillator at the base station and transmitted to all of said remote stations where it serves to provide for frequency locking of the oscillators at said stations to produce synchronisation between the frequencies at the base station and the remote stations.
Patent GB-2217331-A (GB)
Title: Peptides
Inventor: FERREIRA SERGIO HENRIQUES
IPC: C07K1/02
Filed: 1989-03-28
Abstract: Use, in the preparation of a medicament for use in the prevention or treatment of pain, of     (a) a peptide formula (I):   <IMAGE>  wherein X is  H2N-(CH2)4-CH(NH2)-C(=O)- or  H2N-C(=NH)-NH-(CH2)3-CH(NH2)-C(=O)-,  and Y is a hydroxy group or an amino acid residue,   (b) the C-terminal amide thereof, or (c) a pharmaceutically acceptable salt of the said peptide or amide;   with the proviso that the peptide of formula (I) is not Lys-Pro-Arg, Arg-Pro-Tyr, Arg-Pro or Lys-Pro. Certain novel peptides falling within formula (I) are claimed per se.
Patent GB-2231277-A (GB)
Title: Board game based on school life
Inventor: WHELAN CATHRINE ANNE
IPC: A63F3/00
Filed: 1989-04-12
Abstract: A board game for two or more players relating to "schools" and school life which involves moving around a board through different class rooms and school areas, for example, playground, detention and canteen, and answering questions on different subjects on pick-up cards. Scoring can be done by merit and demerit cards or by housepoints, black marks or stars. It can be played individually or in teams or by one player electing to be a teacher and having control of the answers or adapted for younger children and set out in bright colours. The game when adapted for younger children would encourage children to develop an idea of what school will be like and teach them more controlled behaviour, e.g. if they landed on a 'silent square'; small toys could be used for the playing elements and good behaviour would be encouraged by the awarding of stars. Pegs could be used instead of merit and demerit cards. <IMAGE>
Patent GB-2232518-A (GB)
Title: Vehicle deviation warning system
Inventor: PARISH NICHOLAS CHRISTOPHER
IPC: G08G1/16
Filed: 1989-05-19
Abstract: In order to provide a warning to a road vehicle driver that his vehicle is straying from a lane, the vehicle cab is provided with a pair of inductive metal detectors (8a, 8b) connected in parallel to a warning device (9) to provide an audible warning to the driver when either detector comes close to metallic elements (1) marking the lane. The metallic elements may be metallic studs (1) or paint containing strips of copper or aluminium. <IMAGE>
Patent GB-2234461-A (GB)
Title: Desoldering method and apparatus for integrated circuits
Inventor: BROWNING RODNEY JOHN
IPC: H05K13/04
Filed: 1989-07-10
Abstract: A method of removing an integrated circuit (1) or other component from a printed circuit board (2) comprises the step of placing an upstanding screen (3) around the periphery of the component (1), blowing hot air from a hot air source (6) into the region adjacent the component and once the solder has melted, removing the screen with the integrated circuit engaged therewith from the printed circuit board. The open base (5) of the screen forms a tight fit over the pins of the integrated circuit. <IMAGE>
Patent GB-2243210-A (GB)
Title: Distributed optical fibre sensor
Inventor: EVERARD JEREMY KENNETH ARTHUR
IPC: G01D5/353
Filed: 1989-08-30
Abstract: The sensor uses the coherent detection of Stimulated Brillouin backscatter to detect temperature, strain and any external parameter which affects the frequency and or amplitude and or phase of the optical backscatter. The light from a laser is modulated 3 with pseudo-random noise 8 before being launched down an optical fibre 7. As shown, the backscattered light is modulated 13 with a delayed version of the pseudo-random noise before being detected, eg using a photoconductive mixer 10. alternatively, Fig 7 (not shown), the optical modulator 13 is removed and an electrical modulator is used in the photoconductive mixer. These arrangements can be modified by applying an optical source (15) to the other end of the fibre, Figs 8 and 9 (not shown). The Fig 6 arrangement can be modified by also applying the output of the modulator 13 to the other end of the fibre via an optical amplifier (16, Fig 10 not shown). <IMAGE>
Patent GB-2229861-A (GB)
Title: Retractive push button switches
Inventor: TAKANO TSUNESUKE
IPC: H01H13/12
Filed: 1990-03-21
Abstract: A retractive push button switch includes a closed-end insulating housing (11) having first and second pairs of opposed inner wall surfaces. First and second movable contact portions (3) project outwardly from a spring biased operating button (4) having at least one engagement piece for engaging a projection positioned in a groove formed in one of the inner wall surfaces of the housing (11) so as to limit the outward movement of the operating button (4). The movable contact portions (3) are slidably engageable with a first stationary contact (2) inserted in a groove (12A) formed in another inner wall surface of the housing (11) and with a second stationary contact (63). A pair of conductive and resilient fixing pieces (6) for mounting the switch in a hole (31) in a plate (30) and having the second stationary contact piece (63) are disposed at two opposing positions on the upper portion of the housing (11). The push switch can be assembled easily and efficiently without degrading reliability and operability. …<IMAGE>…
Patent GB-2242570-A (GB)
Title: "Contactor and switch therefor"
Inventor: SOMERFIELD ERIC ALBERT
IPC: H01H50/04
Filed: 1990-03-27
Abstract: A switch for use with a conventional contactor wherein the contactor comprises a housing 6, pairs of terminals 8a, 8b, each terminal comprising an L-shaped terminal element 10 and a screw 12, and respective holes 14 located directly above the screws to enable the screws to be engaged by a screw driver, and the switch comprises a housing (20) (see Fig. 4) from which a pair of hollow legs 26 protrude, adapted to be located in a pair of apertures 14 over a pair of terminals 8a, 8b, and a contact element 34 (e.g. spring steel wire), contact portions 34c of the contact element entering apertures 14 above the screws 12. Depression of a switch member 40 causes contact portions 34c to engage the terminals. Housing 20 is attached to the contactor via catch members 28. <IMAGE>
Patent GB-2242625-A (GB)
Title: Plug for outlet from bowl
Inventor: LANGDON ANDREW BAILEY
IPC: A47K1/14
Filed: 1990-04-04
Abstract: A plug 15 for outlet 12 of a bowl eg. basin 11 is connected by a chain or cord 16 to a counterweight 21 outside the bowl, the chain or cord passing through a tube 19 in an upper part of the bowl. When the plug is released, the counterweight draws the plug up to the tube to a meat stacking position. In modifications, the counterweight may be located in an overflow pipe, and the tube may be located in a lower part of the bowl with the chain or cord extending through another tube having a section at a higher level located outside the bowl. <IMAGE>
Patent GB-2233378-A (GB)
Title: Vehicle window seal
Inventor: GINSTER HELMUT
IPC: B60J10/79
Filed: 1990-05-21
Abstract: A vehicle door carries a metal window frame 10 in the form of an outer metal channel 12 and an inner metal channel, the mouth of the channel facing outwardly of the door. A separate seal has a channel-shaped metal reinforcement covered with extruded plastics or rubber material. This is stretch-bent and, if necessary, formed with sharp mitred corners, so as to match the shape and size of the window frame 10 and is then pressed into the channel and secured in position by quick- fixing studs through the base of the channel. Lips embrace the distal edges of the channels. The window glass presses on the outside of lip 34 and passes inside lip. The outside of the base of channel 12 seals against the normal door seal mounted on a vehicle bodywork flanged joint running around the door opening, and the material adjacent a void in the separate seal forms an outer door seal, sealing against the adjacent vehicle bodywork. <IMAGE>
Patent GB-2248359-A (GB)
Title: Resolving range/Doppler coupling in a swept-frequency radar
Inventor: DENNIS ANDREW MICHAEL
IPC: G01S13/34
Filed: 1990-09-26
Abstract: Swept-frequency radar apparatus comprises a swept- frequency oscillator (1) the output (2) of which is coupled to an aerial (3) and to one input (7) of a mixer (6). The other input (5) of the mixer is fed from the aerial, so that the mixer generates a boat signal the frequency of which has components due to the range and to the relative velocity (if any) respectively of a reflecting target - so-called range- Doppler coupling. This frequency is analysed by means of a Discrete Fourier Transform (DFT) calculating circuit (23). In order to resolve the range-Doppler coupling the frequency sweeps produced by the oscillator take on in succession repetition rates R1, R2, ... the ratios between which are reducible to the quotient of relatively prime integers, Ni sweeps being generated at each rate Ri, where the ratios between the Ni are equal to or reducible to the corresponding quotients (Fig 2B). The Ni successive complex amplitudes occurring at a given spectral component output (29) of the DFT calculating circuit (23) for each respective repetition rate Ri, are discrete Fourier transformed by a respective circuit (43, 45, 47) to yield from each a respective possibly ambiguous representation of the component due to the target velocity. The ambiguity is then resolved by taking these respective frequencies together (55) so that the true range and/or velocity can be calculated. The lower rate sweeps may be terminated at a frequency corresponding to that reached at the highest rate. <IMAGE>
Patent GB-2236986-A (GB)
Title: Spell-checking selective printers
Inventor: KOBAYASHI NORIO
IPC: G06F17/27
Filed: 1989-06-24
Abstract: A typewriter (or similar machine) compares the input character string against character strings head in a dictionary to detect mis-spelt words and is arranged to halt printing for a predetermined time when a mismatch between the input and the dictionary character strings is observed, and to resume printing after the expiry of the period unless a corrective action is undertaken within the period. A routine which has this effect is shown in Fig 5A. <IMAGE>
Patent GB-2240738-A (GB)
Title: Slide-valve operating mechanism for a metallurgical vessel
Inventor: FRICKER ROBERT
IPC: B22D41/38
Filed: 1991-01-31
Abstract: A metallurgical vessel (1) has an outlet (3) controlled by a sliding gate valve (6) and an actuator (20) connected to the connecting rod (9) of the slider of the sliding gate valve to open and close the latter. Secured to the external surface of the vessel is a guide body (10) defining a curved guideway (12) in which a flexible force transmission element (15), such as a sprocket chain or steel rope, is positively guided so as to be longitudinally movable. The ends (15a, 15b) of the force transmission element (15) are connected to the connecting rod (9) of the sliding gate valve and to the actuator (20), respectively. <IMAGE>
Patent GB-2241953-A (GB)
Title: Stereoselective hydrolysis
Inventor: NICHOLDS MICHAEL JOHN
IPC: C07C43/23
Filed: 1991-01-31
Abstract: An optically active alcohol of formula (II):   <IMAGE> is prepared by stereoselective hydrolysis of a racemic ester derived from (II) and acids of formula RCO2H, where R is C1-20 alkyl group, in the presence of a lipase.
Patent GB-2253702-A (GB)
Title: apparatus and method
Inventor: EHNHOLM GOSTA JAKOB
IPC: G01R33/54
Filed: 1991-03-12
Abstract: In successive excitation/detection cycles 1-n, a modulation (eg by imposition of an increasing number of 180 DEG  RF pulses 0, 1, 2..., n-1) is applied to the nuclear spun polarization. This enables the generation of a signal indicative of the temporal and/or spatial variations of nuclear spin polarization rate. When such variations arise from the progress of a repeated electromagnetic event (eg neuronal or cardiac activity), the event may thus be investigated or imaged. <IMAGE>
Patent GB-2253564-A (GB)
Title: Cement restrictor for a medullary canal
Inventor: HODGKINSON JOHN
IPC: A61F2/36
Filed: 1991-03-12
Abstract: An expandable cement restrictor comprises an inner member (2) nested within an outer member (1). The members (1, 2) are each formed from a plurality of longitudinal segments (3, 4) which in a non-expanded state are positioned very close to if not touching one another. The restrictor further comprises an expansion body (5) which is positionable within the inner member (2). The restrictor is placed in a medullary canal, and once it has been located in an appropriate position, the expansion body is pulled into the nested inner and outer members (1, 2) to cause the expandable body to dig into the bone of the canal and hold the restrictor in position. A lug on the inner member engages a recess in the outer member to prevent relative rotation of the members. When expanded the longitudinal segments (3, 4) of the inner and outer members overlap circumferentially. <IMAGE>
Patent GB-2256821-A (GB)
Title: Threaded security fastening and driving device therefor
Inventor: CHALLONER VALENTINE
IPC: F16B23/00
Filed: 1991-06-17
Abstract: A female element for rotary driving connection with a complementary male element is provided by forming a carrier having a circular cylindrical passage extending from one end face thereof. A ring (9) is provided which is a snug fit with the passage, and portions of the ring are deformed to provide the required female driving profile (12) on the inner periphery of the ring. The ring is secured within the passage of the carrier in a non-rotatable manner relative to the carrier. <IMAGE>